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•  contract ERC20
•    - function transfer(address _to, uint25 ...
•    - function approveAndCall(address _spen ...
•    - function approve(address _spender, ui ...
•    - function transferFrom(address _from, ...
•  contract TokenSwap *
•    - function Swap(uint256 sendAmount)
•    - function Reclaim(uint256 sendAmount)
•    - function safeMul(uint a, uint b)
•    - function safeDiv(uint a, uint b)

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/**
 *Submitted for verification at Etherscan.io on 2018-10-02
*/

pragma solidity ^0.4.16;


contract ERC20 {
    bytes32 public standard;
    bytes32 public name;
    bytes32 public symbol;
    uint256 public totalSupply;
    uint8 public decimals;
    bool public allowTransactions;
    mapping (address => uint256) public balanceOf;
    mapping (address => mapping (address => uint256)) public allowance;
    function transfer(address _to, uint256 _value) returns (bool success);
    function approveAndCall(address _spender, uint256 _value, bytes _extraData) returns (bool success);
    function approve(address _spender, uint256 _value) returns (bool success);
    function transferFrom(address _from, address _to, uint256 _value) returns (bool success);
}


contract TokenSwap{
    uint256 swapSupply = 500000000000000000000000000;
    
    address public CYFMAddress = 0x3f06B5D78406cD97bdf10f5C420B241D32759c80;
    address public XTEAddress = 0xEBf3Aacc50ae14965240a3777eCe8DA1fC490a78;
    
    address tokenAdmin = 0xEd86f5216BCAFDd85E5875d35463Aca60925bF16;
    

    function Swap(uint256 sendAmount) returns (bool success){
        require(swapSupply >= safeMul(safeDiv(sendAmount, 5), 6));
        if(ERC20(CYFMAddress).transferFrom(msg.sender, tokenAdmin, sendAmount)){
            ERC20(XTEAddress).transfer(msg.sender, safeMul(safeDiv(sendAmount, 5), 6));
            swapSupply -= safeMul(safeDiv(sendAmount, 5), 6);
        }
        return true;
    }
    
    function Reclaim(uint256 sendAmount) returns (bool success){
        require(msg.sender == tokenAdmin);
        require(swapSupply >= sendAmount);

        ERC20(XTEAddress).transfer(msg.sender, sendAmount);
        swapSupply -= sendAmount;
        return true;
    }
    
    function safeMul(uint a, uint b) public pure returns (uint c) {
        c = a * b;
        require(a == 0 || c / a == b);
    }
    function safeDiv(uint a, uint b) public pure returns (uint c) {
        require(b > 0);
        c = a / b;
    }
    
    
    
}

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